USPC Class Details

Description: 44 fuel and related compositions / 44 fuel and related compositions/(550) consolidated solids (e.g., briquette, etc.) (551) containing specified binder

Hierarchy/Derived subclasses

44 / 550-> 551-> 552
  -> 553
  -> 554
  -> 555
  -> 556
  -> 557
  -> 558
  -> 559-> 560
   -> 561
   -> 562
   -> 563
  -> 564-> 565
   -> 566
   -> 567
   -> 568
  -> 569-> 570
   -> 571
  -> 572-> 573
   -> 574
   -> 575
   -> 576
  -> 577
  -> 578
  -> 579
  -> 580

uspto searches

Patent Apps in 44/551

Granted Patents in 44/551

Use the links above or do an advanced search in ppubs for:
(44/551.ccls. or 44/552.ccls. or 44/553.ccls. or 44/554.ccls. or 44/555.ccls. or 44/556.ccls. or 44/557.ccls. or 44/558.ccls. or 44/559.ccls. or 44/560.ccls. or 44/561.ccls. or 44/562.ccls. or 44/563.ccls. or 44/564.ccls. or 44/565.ccls. or 44/566.ccls. or 44/567.ccls. or 44/568.ccls. or 44/569.ccls. or 44/570.ccls. or 44/571.ccls. or 44/572.ccls. or 44/573.ccls. or 44/574.ccls. or 44/575.ccls. or 44/576.ccls. or 44/577.ccls. or 44/578.ccls. or 44/579.ccls. or 44/580.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.
Display:

Back